<!DOCTYPE HTML>
<html>
<head>
  <title>MSE: append data and check that mediasource duration got updated</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="mediasource.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

var durationChangeCount = 0;

runWithMSE(function (ms, v) {
  ms.addEventListener("sourceopen", function () {
    var sb = ms.addSourceBuffer("video/webm");

    v.addEventListener("durationchange", function () {
      durationChangeCount++;
    });

    fetchWithXHR("seek.webm", function (arrayBuffer) {
      sb.appendBuffer(new Uint8Array(arrayBuffer, 0, 318));
      // Adding the first init segment will fire a durationchange.
      once(v, "loadedmetadata")
      .then(function() {
        ok(true, "got loadedmetadata");
        // Set mediasource duration to 0, so future appendBuffer
        // will update the mediasource duration.
        // Changing the duration will fire a durationchange.
        ms.duration = 0;
        sb.appendBuffer(new Uint8Array(arrayBuffer, 318));
        // Adding more data will fire durationchange.
        once(sb, "updateend")
        .then(function() {
          ok(true, "got updateend");
          // this will not fire durationchange as new duration == old duration
          ms.endOfStream();
        });
      });
    });
  });
  ms.addEventListener("sourceended", function () {
    is(durationChangeCount, 3, "durationchange not fired as many times as expected");
    // XXX: Duration should be exactly 4.0, see bug 1065207.
    ok(Math.abs(v.duration - 4) <= 0.002, "Video has correct duration");
    SimpleTest.finish();
  });
});

</script>
</pre>
</body>
</html>
